| Bob Heffner | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 13 September 1938 |
| Birth Place: | Allentown, Pennsylvania, U.S. |
| Debutleague: | MLB |
| Debutdate: | June 19 |
| Debutyear: | 1963 |
| Debutteam: | Boston Red Sox |
| Finalleague: | MLB |
| Finaldate: | May 20 |
| Finalyear: | 1968 |
| Finalteam: | California Angels |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 11–21 |
| Stat2label: | Earned run average |
| Stat2value: | 4.51 |
| Stat3label: | Strikeouts |
| Stat3value: | 241 |
| Teams: |
|
Robert Frederic Heffner (born September 13, 1938), nicknamed "Butch", is a retired Major League Baseball right-handed pitcher with the Boston Red Sox (–), Cleveland Indians, and California Angels . He stood 6feet tall and weighed, in his playing days.
Heffner was born in Allentown, Pennsylvania. He attended Allentown High School, now William Allen High School, where he graduated in 1957.
On June 12, 1957, Heffner was signed by the Boston Red Sox as an amateur free agent right out of high school.
Throughout his Major League Baseball (MLB) career, Heffner was used both as starter and reliever. His most productive season came in with the Red Sox, when he posted career-highs in wins (seven, including a shutout), strikeouts (112), saves (six), games (55), and innings .
Hefner's five-season MLB career totals include an 11–21 W–L record, a 4.51 ERA, and six saves. Overall, he appeared in 114 games, 31 of which were as a starter.